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All Journal Jurnal Teknik Mesin KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science AKSIOMA Jurnal Pendidikan Matematika R.E.M (Rekyasa Energi Manufaktur) Jurnal Jurnal Purifikasi Wave: Jurnal Ilmiah Teknologi Maritim M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika International Journal of Marine Engineering Innovation and Research Makara Journal of Technology Sewagati
I Made Ariana
Departemen Teknik Sistem Perkapalan Institut Teknologi Sepuluh Nopember Surabaya
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PENURUNAN EMISI GAS BUANG MOTOR DIESEL KAPAL DENGAN ELEKTROLISIS AIR LAUT I Made Ariana
Purifikasi Vol 12 No 1 (2011): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v12.i1.214

Abstract

This research was aimed to simultaneously reduce exhaust emissions from diesel ship engine. Three emission parameters, which consisted of NOx, SOx and particulate matter (PM), were reduced by spraying the electrolysis product of sea water through a scrubber to the exhaust gas. Dong Feng motor diesel, type R175A, with a maximum power of 6.6 HP and rotation rate of 2600 rpm was used in this test. The motor was operated using Marine Diesel Oil fuel up at 2400 rpm in various power loads. Loading was done by an electric generator, which was connected with an electric lamp panel. The loading power was varied at 500, 1500, and 2500 watts. Exhaust gas flow rates into the scrubber were also varied by exhaust pipe valve adjustment. The variations were made 100% and 75% of exhaust gas flow rate to the scrubber. Measurements of pH value and exhaust gas emissions were done near the inlet and the outlet points of the scrubber. Measurements of pH values were carried out near the anode and cathode in order to determine the formation of acid and alkaline solutions to be sprayed into the scrubber. The concentrations of NOx, SOx, and PM were measured at various load variations. Sea water electrolysis produced acid and base, which affected the pH values to change from 5 to 12. This method could reduce NOx, SOx, and PM concentrations up to 76%, 75%, and 42% respectively.
Analysis of Performance, Emission, Noise and Vibration on Single Cylinder Diesel Engine After Installing Dual Fuel Converter-Kit Based on ECU Adhi Iswantoro; I Made Ariana; Muhammad Syuhri
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 19, No 1 (2022): February
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v19i1.44126

Abstract

Now the demand for fuel oil has increased, this can cause fuel oil reserves to be depleted. To reduce the use of fuel oil, alternative energy is needed. One alternative energy that can be used to reduce fuel oil consumption is LPG (Liquid Petroleum Gas). The use of alternative fuels for LPG in diesel engines is done by converting diesel engines into dual fuel. This research aims to determine the effect of using dual fuel that are LPG-Diesel fuel on engine performance including power, torque, fuel consumption, emissions, vibration and noise. The research was conducted using a Yanmar TF 85 MH engine at 2000 RPM engine speed with variations in loading of 1000, 1500, 2000, 2500, and 3000 watts, and dual fuel with variations in injector openings of 3ms, 4ms, 5ms. Based on the research results, the use of LPG in dual fuel system with installing ECU (Electronic Control Unit) converter-kit, can replace diesel fuel oil consumption up to 93%. In the use of dual fuel there is an average decrease in power and torque of up to 1.95% if using only diesel fuel have average power up to 2.32 kW and torque up to 11.09 Nm. When using dual fuel there is a decrease in specific fuel oil consumption by up to 44% when using only diesel fuel have average fuel oil consumption up to 414.15 g/kWh. The maximum NOx emission produced is 1.83 g/kWh for a 3ms gas injector opening, 1.48 g/kWh for a 4ms gas injector opening, and 1.81 g/kWh for a 5ms injector opening. The maximum vibration generated is 33.2 m/s² for a 3ms injector opening, 31.4 m/s² for a 4ms injector opening, 27.46 m/s² for a 5ms injector opening, and when used only Diesel Fuel is 32.8 m/s2. The maximum noise generated is 92.33 dBA for 3ms injector opening, 92.43 dBA for 4ms injector aperture, 93.20 dBa for 5ms injector aperture, and 91.73 dBa when using diesel oil only.
Development of Optimum Design B-Series Propeller with Engine Propeller Matching, A Case Study 60-Meters Patrol Boat Cahya Kusuma; I Made Ariana; Wibowo Harso Nugroho; Mahendra Indiaryanto; Baharuddin Ali
International Journal of Marine Engineering Innovation and Research Vol 7, No 2 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (688.05 KB) | DOI: 10.12962/j25481479.v7i2.12836

Abstract

in preliminary ship design and ship propulsion systems, it is important to have a simple method of determining the optimization of the propeller diameter and propeller efficiency, as the minimum input data to arrive at a rough estimate of performance. This problem can be solved using propeller diagrams of the open water test series or polynomial regression. This research will introduce an optimization method for the design of the B series. The propeller design process, which was carried out as a single objective function using the MatLab code numerical method, encountered problems due to cavitation, required propeller thrust and engine propeller matching. Engine propeller matching is the matching of engine power, the hull and the propeller to achieve design speed with optimal efficiency. This research focus on case study results of testing a patrol boat with a length of 60 m. By using a computer program, this 60m patrol boat is able to reach a speed of 23.5 knots using a B5-92 and an engine power of 2935 kW with an efficiency of 64.2%. Using the DESPPC program, the 60m patrol boat is able to reach a speed of 23.5 using a B5-989 and an engine power of 2927 kW with an ETA-O efficiency of 64.5%. It can be concluded that the small computer program can be used as a B-Series propeller optimization method. For future research, this method will be developed for the other series based on polynomial regression such as Gawn series and Kaplan series.
Analysis of The Injection Pressure Effect on Single Cylinder Diesel Engine Power with Diesel Fuel-Methanol Blend Aguk Zuhdi Muhammad Fathallah; Adhi Iswantoro; Semin Semin; Beny Cahyono; I Made Ariana; Ananda Rizky Budi Pratama
International Journal of Marine Engineering Innovation and Research Vol 7, No 2 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.484 KB) | DOI: 10.12962/j25481479.v7i2.12884

Abstract

The use of fossil diesel fuels still produces carbon dioxide emissions (CO2), sulphur dioxide (SO2), hydrocarbon emissions (HC), nitrogen oxide (NOx), and high total particles and carbon monoxide (CO). Moreover, the need for transportation of motor vehicles will always increase every year. The emission of exhaust gases resulting from the combustion process can essentially be reduced by improving fuel quality, the homogeneity of the fuel mixture, and regulating proper combustion. There are several ways to reduce exhaust emissions from diesel engines by providing precise injection pressures. This is done to get the perfect combustion. In addition, improving fuel quality is a way to reduce emissions of exhaust gases. Another one is by adding methanol to the diesel. The addition of methanol can reduce the emission of exhaust gas produced. The process of mixing the solar and methanol takes the addition of surfactants to obtain good homogeneity. Testing was conducted using simulation software with engine modeling. The result can be seen in the reduction and the addition of standard pressure 200 bar, that the emulsion fuel in SFOC (specific fuel oil consumption) suffered a decrease and increased by 0.2% and 0.3% at pressure 160 bar and pressure 240 bar. The fuel solution on SFOC suffered a decrease and an increase of 0.3% and 0.25% was produced by pressure 160 bar and pressure 240 bar. The highest NOx is produced by 240 bar injection pressures with Dexlite fuel while the lowest NOx is produced by 160 bar injection pressure with emulsion fuel.
Shaft Torsional Vibration Response of Vertical Axis Ocean Current Turbine Model Due to Torque Excitation Husodo, Adi Wirawan; Utama, I Ketut Aria Pria; Ariana, I Made
Makara Journal of Technology Vol. 14, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Shaft Torsional Vibration Response of Vertical Axis Ocean Current Turbine Model Due to Torque Excitation. The current research aimed to study the torsional vibration response of Vertical Axis Ocean Current Turbine due to randomly torque excitation pattern, owing to the variety of ocean current velocity. The turbine model is composed of 3 aluminum blades of NACA 0018 connected to steel shaft. Turbine dimensions are 10 cm of chord, 1.8 cm of chamber and 100 cm of span. The variation of ocean current velocity is 0.5 m/s, 1.0 m/s, 1.5 m/s, 2.0 m/s, 2.5 m/s and 3.0 m/s. The Model has 2 degree of freedom which is described into two 2nd order differential equations. The eigenvalue solution yields the model’s natural frequencies; 201,38 rad/s and 457.91 rad/s. Fourier series is used to define the equation of torsional excitation, whilst the vibration equation is solved using Laplace Transform. According to analysis, there is no resonance occur. That because of the system’s natural frequencies is diverse to the magnitude of excitation frequencies. Model will be statically twisted first before vibrated. The response will be transient first then constantly steady. Furthermore, the bigger torque excitation will cause the bigger angular displacement as well the amplitude.
Performance and Emission Analysis of Four-Stroke Diesel Engine Single Cylinder on Toroidal Piston Modification with B30 Fuel Adhi Iswantoro; I Made Ariana; Bagus Gigih Luqmananto; M. Furqon Maulana; Semin Semin
International Journal of Marine Engineering Innovation and Research Vol 7, No 4 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v7i4.13891

Abstract

Improvement of the performance of the diesel engine can be done by expanding the combustion chamber. One of the objectives of this research is to obtain optimal piston performance by modifying the piston crown to be 1mm deeper than the standard piston using B30 fuel. This research is also proof of previous research with a simulation that concluded that the performance of a diesel engine using a modified toroidal combustion chamber (TCC) +1mm piston has better performance than a standard piston. This research will analyze the comparison of the performance of a diesel engine using a standard piston and a modified piston on the diesel engine, using an experimental method with B30 biodiesel fuel with engine speed (RPM) variation of 1900 and 2100, also the dummy loads used are 1000, 2000, 3000, and 4000 Watts (W). From the results of the performance tests, it is concluded that the standard piston produces better performance than the modified piston with a very small difference in value in terms of torque, power, and SFOC. The level of NOx emissions produced by the standard RPM 1900 with 1000 W load is 1,483 g/KWh, at a load of 2000 W is 1,011 g/KWh, at a load of 3000 W is 1.375 g/KWh, at a load of 4000 W is 2,372 g/KWh, for standard piston RPM 2100 NOx emission levels produced at 1000 W load is 1,902 g/KWh, at 2000 W load is 1,450 g/KWh, at 3000 W load is 1.368 g/KWh, at 4000 W load is 1,066 g/KWh. The level of NOx emissions produced using a modified piston at 1900 RPM at 1000 W load is 1.865 g/KWh, at 2000 W load is 1.326 g/KWh, at 3000 W load is 1,250 g/KWh, at 4000 W load is 0.857 g/KWh, for RPM 2100 uses a modified piston at a 1000 W load is 1,970 g/KWh, at a 2000 W load is 1,583 g/KWh, at a 3000 W load is 1,465 g/KWh, at a 4000 W load is 1,226 g/KWh. NOx emission levels using standard pistons at RPM 1900 with B30 fuel tend to be smaller at low loads and larger at high loads compared to modified pistons, while NOx emission levels using standard pistons at RPM 2100 fueled by B30 are smaller than using a modified piston.
Pembuatan Converter-kit Dual Fuel LPG-Diesel Fuel untuk Nelayan di Daerah Kenjeran Surabaya Adhi Iswantoro; I Made Ariana; Semin; Aguk Zuhdi Muhammad Fathallah; Beny Cahyono
Sewagati Vol 6 No 6 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8604.354 KB) | DOI: 10.12962/j26139960.v6i6.235

Abstract

Terjadinya kelangkaan bahan bakar minyak (BBM) beberapa daerah di Indonesia memberikan dampak langsung kepada masyarakat, termasuk nelayan. Akibatnya nelayan tidak bisa melaut mencari ikan. Salah satu metode yang bisa dipilih untuk mengatasi masalah ini untuk membantu nelayan adalah dengan bahan bakar alternatif yaitu bahan bakar gas (BBG). Tentu perlu peralatan tambahan agar mesin diesel kapal nelayan bisa beroperasi dengan BBG. Yaitu dengan modifikasi dan penambahan alat berupa converter-kit, sehingga mesin konvensional bisa menjadi mesin dual fuel. Dalam kegiatan ini kami membuat alat converter-kit untuk bisa dipasang pada mesin kapal nelayan dan menghibahkan alat tersebut kepada nelayan di daerah Kenjeran Surabaya. Dari hasil analisis yang dilakukan berdasarkan uji laboratorium, performansi mesin diesel masih stabil ketika menggunakan mode dual fuel, yaitu daya yang dihasilkan. Kemudian untuk konsumsi bahan bakar terjadi penurunan yang signifikan dengan komposisi BBM & BBG. Selain itu tingkat emisi yang dihasilkan baik itu NOx, SOx & partikel karbon turun drastis karena penggunaan gas. Dari sini kami bisa simpulkan bahwa penggunaan gas pada mode dual-fuel lebih ekonomis dan lebih ramah lingkungan.
Pelatihan Tentang Modifikasi, Pengoperasian dan Perawatan Mesin Dual Fuel untuk Nelayan di Daerah Kenjeran Surabaya Adhi Iswantoro; I Made Ariana; Semin; Aguk Zuhdi Muhammad Fathallah; Beny Cahyono
Sewagati Vol 4 No 3 (2020)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (798.49 KB)

Abstract

Saat ini kebutuhan bahan bakar minyak (BBM) meningkat, tetapi tidak dibarengi ketersediaan BBM melimpah. Sehingga beberapa daerah di Indonesia mengalami kelangkaan BBM. Salah satu masyarakat yang merasakan dampaknya nelayan. Nelayan tidak bisa mencari ikan karena kelangkaan BBM. Salah satu cara mengatasi hal tersebut adalah adanya bahan bakar alternatif, diantaranya adalah bahan bakar gas (BBG). Beberapa nelayan telah menggunakan kombinasi antara LPG dan BBM. Akan tetapi perlu adanya sosialisasi lebih lanjut kepada nelayan agar penggunaannya lebih aman dan modifikasi mesin dilakukan dengan benar. Atas permasalahan tersebut, maka perlu adanya pelatihan kepada nelayan tentang modifikasi mesin konvensional menjadi mesin dual fuel. Dalam kegiatan ini kami melakukan pelatihan kepada nelayan di daerah Kenjeran Surabaya tentang cara memodifikasi, pengoperasian dan perawatan mesin. Dari hasil analisis yang dilakukan berdasarkan keterangan nelayan, dengan jarak tempuh yang sama, jika menggunakan BBM, sekali melaut pergi-pulang membutuhkan 8 liter BBM, jika dirupiahkan sekitar Rp 80.000,-. Tetapi jika menggunakan mesin dual fuel, untuk mesin bensin membutuhkan 1 tabung LPG 3 kg harganya Rp 17.000,-. Sementara untuk mesin diesel butuh 1 tabung LPG 3 kg harganya Rp 17.000,- dan BBM 3 liter harga sekitar Rp 30.000,- sehingga jika ditotal Rp 47.000,-. Sehingga ini bisa sebagai bahan bakar alternatif dan lebih hemat.
Pengenalan dan Pemberian Wawasan Sistem Propulsi Kapal pada Siswa SMA Insan Cendekia Sukoharjo Adhi Iswantoro; I Made Ariana; Semin; Aguk Zuhdi Muhammad Fathallah; Beny Cahyono
Sewagati Vol 6 No 4 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1390.907 KB) | DOI: 10.12962/j26139960.v6i4.376

Abstract

Sejalan dengan visi pemerintah Indonesia di era Presiden Joko Widodo yaitu ingin membuat Indonesia menjadi poros maritim dunia, maka ada banyak hal yang harus disiapkan. Salah satunya adalah menumbuhkan jiwa bahari pada masyarakat Indonesia, khususnya generasi muda sebagai penerus bangsa serta menyiapkan sumber daya manusia yang handal di bidang maritim. Dimana saat ini cukup banyak generasi muda yang kurang mengenal sektor maritim. Atas dasar hal-hal tersebut, maka perlu ada kegiatan yang betujuan untuk kembali menumbuhkan jiwa bahari. Salah satu cara yang cukup efektif untuk mengatasi permasalahan tersebut diatas adalah dengan melakukan pengenalan dan pemberian wawasan bahari dan maritim pada generasi muda, yaitu pada siswa-siswi sekolah menengah atas atau kejuruan. Untuk itu tim pengabdian masyarakat membuat suatu kegiatan yang melibatkan pihak sekolah, yaitu SMA Insan Cendekia Sukoharjo. Dalam kegiatan ini dilakukan pengenalan mengenai Indonesia sebagai bangsa bahari & kepulauan, perjuangan Ir. Juanda dalam bidang maritim dan sistem propulsi yang ada di kapal. Dari hasil kegiatan tersebut, di awal memang mayoritas siswa belum mengetahui tentang bidang maritim. Akan tetapi para siswa sangat antusias ketika sesi tanya jawab berlangsung. Dalam kegiatan ini dihadiri oleh Wakil Kepala sekolah bidang akademik dan 35 siswa.
Penerapan Konverter-kit Bahan Bakar Ganda untuk Mesin Kapal Nelayan di Kalanganyar Sidoarjo Adhi Iswantoro; I Made Ariana; Semin; Aguk Zuhdi Muhammad Fathallah; Beny Cahyono
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v7i3.516

Abstract

Penggunaan bahan bakar minyak (BBM) di masyarakat untuk transportasi, termasuk nelayan masih sangat tinggi, sementara penggunaan bahan bakar gas (BBG) pada sektor transportasi masih tergolong rendah. Padahal BBG memiliki banyak keunggulan, yakni lebih murah dan lebih bersih dari segi emisinya. Ketergantungan pada satu jenis bahan bakar ini sangat berpengaruh pada kesiapan operasional kapal nelayan. Banyak nelayan yang terpaksa tidak mencari ikan karena harga BBM dianggap mahal atau terkadang tidak tersedia di pasaran. Salah satu cara menyelesaikan masalah tersebut adalah dengan adanya bahan bakar jenis lain selain BBM, yaitu BBG. Salah satu BBG yang bisa digunakan adalah Liqufied Petroleum Gas (LPG), karena relatif mudah didapatkan masyarakat. Penggunaan bahan bakar ganda antara LPG dan BBM bertujuan agar konsumsi BBM bisa minimal, sehingga bisa menghemat biaya operasional kapal, selain juga emisi yang dihasilkan lebih rendah. Untuk itu perlu adanya modifikasi pada mesin diesel kapal nelayan yaitu dengan pemasangan konverter kit. Sasaran dalam kegiatan pengabdian ini adalah nelayan di Kalanganyar, Sidoarjo, Jawa Timur.
Co-Authors A. A. Masroeri Masroeri A. Zubaydi Zubaydi A.A. Masroeri A.A.B. Dinariyana AAB Dinariyana DP Achmad Zubaydi Adhi Iswantoro Adi Husodo Adi Husodo, Adi Adi Wirawan Husodo Aditya Wahyu Saputra Aguk Z. M. Fathallah Agung Purwana Aldio Paruna Ananda Rizky Budi Pratama Bagus Gigih Luqmananto Baharuddin Ali Beny Cahyono Berlian Arswendo Adietya Cahya Kusuma Cahya Kusuma Cahya Kusuma Cahyono, Beny Dhimas Widhi H Dhimas Widhi Handani Erwandi Erwandi F. Louhenapessy Louhenapessy Fathallah, Aguk Zuhdi Muhammad Fransiskus Louhenapessy Gede Bagus Dwi SA Hanif Nur Fauzi Margono Hari Prastowo Harifuddin Harifuddin I Ketut Aria Pria Utama I Ketut Aria Utama I Ketut Aria Utama, I Ketut Aria I Wayan Sumandya Imron Noor Ardiwijaya Indiaryanto, Mahendra Indrajaya Gerianto Indrajaya Gerianto Gerianto Gerianto Ketut Buda Artana Kriswana, Deni Kusuma, Cahya L. Baliwangi Baliwangi M. Furqon Maulana M. Tukan Tukan Mahendra Indiaryanto Mahendra Indiaryanto Muh Hasbi Muhammad Syuhri Muryadin, Muryadin Nanang Juhantoro Nur Salim Salim Aris Pratiwi, Emmy Reza Revari S. M. Taribuka Taribuka Samsu Dlukha N Sandjaja, Irfan Eko Semin Semin Sanuri Semin Semin Semin Semin Semin Semin Semin Semin Sinta, Ni Putu Suhardjono Suhardjono Sukayasa Tangguh Tangguh Bimantoro Wibowo Harso Nugroho Wisnu Wardhana